Epson 5000 - Manual (Page 41)

Single sheet This position is for loading single sheets.
Push tractor This position is for loading continuous paper from
the rear, with the tractor in the push-tractor
position.
Pull tractor This position is for loading continuous paper from
the rear, front, or bottom, with the tractor in the
pull-tractor position. Use this position when
you have installed both the push tractor and
the optional pull tractor.
Paper Handling 2-3